Finding the Fourth Proportional to 100,925,662.72, 139,277,393.04 and 54,515,917.12

Step by Step Solution

1. Step 1: Write the proportion equation
   100,925,662.72 : 139,277,393.04 = 54,515,917.12 : x
2. Step 2: Convert to fraction form
   100,925,662.72/139,277,393.04 = 54,515,917.12/x
3. Step 3: Cross multiply
   100,925,662.72x = 139,277,393.04 × 54,515,917.12
4. Step 4: Simplify right side
   100,925,662.72x = 7,592,834,815,658,304
5. Step 5: Solve for x
   x = 7,592,834,815,658,304/100,925,662.72
6. Step 6: Final answer
   x = 75,231,954.00